How do I qualify for a K-4 non-immigrant visa status?
To qualify for K-4 issuance, an applicant must be the minor, unmarried child under 21 years of age of a qualified K-3 visa applicant. The U.S. citizen who files an I-129F petition for an alien spouse does not have to file a separate I-129F petition for a child of his/her spouse. These children should be listed on the I-129F petition for the spouse. While the U.S. citizen must also file an I-130 petition for the alien spouse, there is no requirement to file a Form I-130 immigrant visa petition on behalf of the alien’s children seeking K-4 nonimmigrant status, since K-4 is merely a derivative nonimmigrant classification.